exam Maths Puzzle Numerical Ability

Graph F(x) =x/x+3

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exam Other Question

What is the inverse of the function y=logbase2 x? Is it
a) y=2^-x
b) y=2^x
c) y=x^2
d) y=logbasex 2 radio towers A and B, 200 kilometers apart, are situated along the coast, with A located due west of B. Simultaneous radio signals are sent from each tower to a ship, with the sign